With the strengthening of the yen against other currencies in 2010, Japans central bank did not take

Question:

With the strengthening of the yen against other currencies in 2010, Japan’s central bank did not take any action. A leading Japanese politician has called on the central bank to take actions to weaken the yen, saying it will help exporters in the short run and have no long-run effects.
a. What is Japan’s current policy?
b. What does the politician want the policy to be in the short run? Why would such a policy have no effect on the in the long run? Exchange Rate
The value of one currency for the purpose of conversion to another. Exchange Rate means on any day, for purposes of determining the Dollar Equivalent of any currency other than Dollars, the rate at which such currency may be exchanged into Dollars...